Leandro Souza Maduro
Verified Expert in Engineering
Software Engineer and Developer
Ribeirao Preto - State of São Paulo, Brazil
Toptal member since November 8, 2024
Leandro is a senior software engineer with 14 years of experience in developing efficient and scalable applications with clean and modular code. He specializes in back-end development, specifically Ruby and Ruby on Rails, and database query performance optimization. Leandro has worked on projects across industries, contributing to robust solutions at Toptal and creating a gem that doubled XML generation performance at Fuga. He is also expanding his front-end skills to tackle full-stack projects.
Portfolio
Experience
- Software Deployment - 14 years
- Git - 14 years
- Software Design - 10 years
- PostgreSQL - 8 years
- Ruby - 8 years
- Ruby on Rails (RoR) - 8 years
- GraphQL - 6 years
- Stripe - 3 years
Availability
Preferred Environment
RubyMine, Slack, Jira, Confluence, Git, Linux, Ruby, Ruby on Rails (RoR)
The most amazing...
...thing I’ve developed was a gem for Fuga that doubled performance, making it twice as fast.
Work Experience
Senior Software Engineer
Toptal, LLC
- Led key initiatives focused on driving revenue growth for the company. This involved strategic planning, coordinating with cross-functional teams, and overseeing implementation to ensure impactful and measurable financial outcomes.
- Created a detailed spend report that provided clients with clear visibility into their financial expenditures, enabling them to track their spending, gain valuable insights, and make informed budgeting and cost-management decisions.
- Worked on integrating Salesforce with our platform to smoothly import contract details into our system. This integration ensured data consistency, streamlined access to essential information, and improved workflow efficiency for users.
Senior Software Engineer
Fuga
- Contributed to optimizing the system's performance, improving automation processes, and troubleshooting integration issues.
- Worked on a critical system to deliver music products to major digital service providers such as Spotify, Apple Music, Deezer, and YouTube.
- Developed a gem that made the XML generation twice as fast.
Software Engineer
Impraise
- Enhanced and maintained a complex microservices architecture, ensuring system stability and efficiency. This involved optimizing performance, troubleshooting issues, and implementing improvements to support seamless interactions between services.
- Developed and implemented an integration between services using gRPC, facilitating efficient communication and data exchange. This involved designing the interaction protocol, setting up gRPC endpoints, and ensuring seamless service interoperability.
- Rewrote and optimized the query responsible for fetching user activities, greatly improving its performance. This process included analyzing the original query, pinpointing inefficiencies, and applying enhancements for faster data retrieval.
Experience
HireGlobal
https://www.toptal.com/hireglobalEducation
Bachelor's Degree in Computer Engineering
University of Araraquara (UNIARA) - Araraquara, SP, Brazil
Skills
Libraries/APIs
Sidekiq, Stripe, React
Tools
RubyMine, Slack, Git, Jira, Confluence
Languages
Ruby, GraphQL, Python, XML, JavaScript
Frameworks
Ruby on Rails (RoR), gRPC
Storage
Databases, PostgreSQL, Amazon S3 (AWS S3)
Platforms
Linux, Apache Kafka, Google Cloud Platform (GCP), AWS Lambda, Amazon Web Services (AWS)
Other
Software Deployment, Software Design, Google BigQuery, FTP, Transcoding, Relational Database Services (RDS)
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